The Role of Intracellular Yeastlike Symbiotes in the Development of Laodelphax striatellus (Homoptera : Delphacidae)
- 1 January 1979
- journal article
- research article
- Published by Japanese Society of Applied Entomology & Zoology in Applied Entomology and Zoology
- Vol. 14 (4) , 453-458
- https://doi.org/10.1303/aez.14.453
Abstract
The intracellular yeastlike symbiotes in L. striatellus are destroyed by heat treatment (at 35.degree. C for the 1st 3 days of the nymph). The heat treatment shows a deleterious effect on the adult molt; a number of the insects fail to emerge. The administration of cholesterol to the heat treated insects largely promoted the adult molt. .beta.-Sitosterol also had an effect on the recovery of the deleterious effect. The heat treated 5th-instar nymphs fairly molted by application of ecdysterone. The deleterious effects seems to come from the collapse of the yeastlike symbiotes through steroid metabolism of the insect. The yeast-like symbiotes appear to play an important role in supplying sufficient sterol for the development of L. striatellus.This publication has 3 references indexed in Scilit:
- Sterols in Laodelphax striatellus with special reference to the intracellular yeastlike symbiotes as a sterol sourceJournal of Insect Physiology, 1979
- Histological and Histochemical Observation of Intracellular Yeastlike Symbiotes in the Fat Body of the Smaller Brown Planthopper, Laodelphax striatellus (Homoptera : Delphacidae)Applied Entomology and Zoology, 1977
- Fucosterol-24,28-epoxide, as a probable intermediate in the conversion of β-sitosterol to cholesterol in the silkwormJournal of the Chemical Society, Chemical Communications, 1972